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September Weather in Winnsboro, United States

Last updated: June 24, 2025

In Winnsboro, United States, the average temperature in September hovers around 27°C (80°F), making it a pleasantly warm destination. However, temperatures can dip as low as 12°C (54°F) and soar up to 40°C (104°F). Visitors should also be prepared for some rain, as 81 mm (3.2 in) of precipitation may occur over the course of 8 days. With an average humidity level of 73%, it's a perfect time to experience the vibrant atmosphere of this locale.

September Temperature in Winnsboro

In September in Winnsboro, the average temperature is 27°C (80°F), with maximums reaching up to 40°C (104°F) and minimums dropping as low as 12°C (54°F). It's advisable to pack lightweight clothing for the daytime and a light jacket for cooler evenings during your travels.

September Weather in Winnsboro: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Winnsboro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winnsboro, September typically has an average temperature of 27°C (80°F), with highs reaching up to 40°C (104°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec495361657480838380695652
Data source: Temperature data for Winnsboro generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Winnsboro

In Winnsboro in September, the precipitation amount is 81 mm (3.2 in) over the course of 8 days.

September Precipitation Trends in Winnsboro

The chart displays monthly precipitation patterns in Winnsboro, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Winnsboro, September typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec116186123149128117991038112184128
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Winnsboro

In Winnsboro in September humidity is 73%. With an average temperature of 27°C (80°F), this humidity feels like a warm, enveloping blanket that can make traveling feel sticky and slightly uncomfortable, prompting frequent breaks in the shade and plenty of hydration.

September Average Humidity in Winnsboro

This chart illustrates the average monthly humidity levels in Winnsboro, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Winnsboro is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%80%82%83%80%80%75%73%76%84%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Winnsboro

In Winnsboro in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Winnsboro.

Maximum UV Index Levels in Winnsboro for September

The chart shows the monthly maximum UV Index (UVI) for Winnsboro in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Winnsboro typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111112121110864
Data source: Winnsboro September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Winnsboro Compares to Other Months

Weather in Winnsboro varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Winnsboro, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Winnsboro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (49°F)116 mm (4.6 inches)84%moderate
February Weather12°C (53°F)186 mm (7.3 inches)83%high
March Weather16°C (62°F)123 mm (4.8 inches)80%very high
April Weather18°C (65°F)149 mm (5.9 inches)82%extreme
May Weather23°C (74°F)128 mm (5.1 inches)83%extreme
June Weather27°C (80°F)117 mm (4.6 inches)80%extreme
July Weather28°C (83°F)99 mm (3.9 inches)80%extreme
August Weather28°C (83°F)103 mm (4.1 inches)75%extreme
September Weather27°C (80°F)81 mm (3.2 inches)73%very high
October Weather21°C (70°F)121 mm (4.8 inches)76%very high
November Weather13°C (56°F)84 mm (3.3 inches)84%high
December Weather11°C (53°F)128 mm (5.0 inches)88%moderate

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